Reflexivity and Correlation of Magnetic States of Nanostructures in the Nb(70 nm)/Ni 0.65 Cu 0.35 (6.5 nm)/Si Ferromagnet–Superconductor Heterostructure

V. D. Zhaketov; Yu. V. Nikitenko; A. V. Petrenko; S. N. Vdovichev; A. V. Churakov; A. Csik

doi:10.1134/S1063776118090248

Reflexivity and Correlation of Magnetic States of Nanostructures in the Nb(70 nm)/Ni_0.65Cu_0.35(6.5 nm)/Si Ferromagnet–Superconductor Heterostructure

Autores: Zhaketov V.D.¹, Nikitenko Y.V.¹, Petrenko A.V.¹, Vdovichev S.N.², Churakov A.V.¹, Csik A.³
Afiliações:
1. Joint Institute for Nuclear Research
2. Institute of Physics of Microstructures
3. Institute for Nuclear Research
Edição: Volume 127, Nº 3 (2018)
Páginas: 508-515
Seção: Order, Disorder, and Phase Transition in Condensed System
URL: https://journals.rcsi.science/1063-7761/article/view/193585
DOI: https://doi.org/10.1134/S1063776118090248
ID: 193585

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We have studied the Nb(70 nm)/Ni_0.65Cu_0.35(6.5 nm)/Si layered structure in the temperature range T = 1.5–10 K using polarized neutron reflectometry. The correlation of the states of magnetic structures is observed at temperature T = 9 K, which is slightly higher than the superconducting transition temperature T_c = 8.5 K of the structure. At temperature T = 4 K, which is lower than T_c, the effect of reflexivity of magnetic states existing at T = 9 K was observed.